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      软件学院ACM集训队选拔赛第二场
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        <h1 id="A"><a href="index.html#A" class="headerlink" title="A"></a>A</h1><p><a href="http://110.64.92.219/problem/160" target="_blank" rel="noopener">我，小南瓜，队列</a><br><a id="more"></a></p>
<h1 id="B"><a href="index.html#B" class="headerlink" title="B"></a>B</h1><p><a href="http://110.64.92.219/problem/168" target="_blank" rel="noopener">我，小南瓜，橘猫捕捉计划，启动！</a></p>
<h1 id="C"><a href="index.html#C" class="headerlink" title="C"></a>C</h1><p><a href="http://110.64.92.219/problem/167" target="_blank" rel="noopener">我，小南瓜，某乎，启动！</a><br>stl容器荟萃。</p>
<figure class="highlight cpp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#<span class="meta-keyword">include</span> <span class="meta-string">&lt;iostream&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span> <span class="meta-string">&lt;cstdio&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span> <span class="meta-string">&lt;string&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span> <span class="meta-string">&lt;vector&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span> <span class="meta-string">&lt;set&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span> <span class="meta-string">&lt;map&gt;</span></span></span><br><span class="line"><span class="keyword">using</span> <span class="keyword">namespace</span> <span class="built_in">std</span>;</span><br><span class="line"><span class="keyword">const</span> <span class="keyword">int</span> N=<span class="number">105</span>;</span><br><span class="line"><span class="built_in">string</span> tag[N];</span><br><span class="line"><span class="built_in">string</span> tags[N][N];</span><br><span class="line"><span class="built_in">set</span>&lt;<span class="built_in">string</span>&gt; sset;</span><br><span class="line"><span class="built_in">map</span>&lt;<span class="built_in">string</span>,<span class="keyword">int</span>&gt; smapn;</span><br><span class="line"><span class="built_in">map</span>&lt;<span class="keyword">int</span>,<span class="built_in">string</span>&gt; nmaps;</span><br><span class="line"><span class="built_in">vector</span>&lt;<span class="keyword">int</span>&gt; ans[N];</span><br><span class="line"><span class="keyword">int</span> tagn[N];</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">main</span><span class="params">()</span></span>&#123;</span><br><span class="line">	<span class="comment">//freopen("input.txt","r",stdin);</span></span><br><span class="line">	<span class="keyword">int</span> n;</span><br><span class="line">	<span class="built_in">cin</span>&gt;&gt;n;<span class="built_in">cin</span>.get();</span><br><span class="line">	<span class="keyword">for</span>(<span class="keyword">int</span> i=<span class="number">0</span>;i&lt;n;i++)&#123;</span><br><span class="line">		getline(<span class="built_in">cin</span>,tag[i]);</span><br><span class="line">		<span class="comment">//cout&lt;&lt;"when i="&lt;&lt;i&lt;&lt;",tag[i]="&lt;&lt;tag[i]&lt;&lt;endl;</span></span><br><span class="line">		<span class="comment">//int len=tag[i].length();</span></span><br><span class="line">		<span class="keyword">auto</span> j=tag[i].begin();</span><br><span class="line">		<span class="keyword">auto</span> k=j;</span><br><span class="line">		<span class="keyword">for</span>(;k!=tag[i].end();)&#123;</span><br><span class="line">			<span class="keyword">if</span>(*k==<span class="string">'/'</span>)&#123;</span><br><span class="line">				tags[i][tagn[i]++]=<span class="built_in">string</span>(j,k);</span><br><span class="line">				k++;</span><br><span class="line">				j=k;</span><br><span class="line">			&#125;<span class="keyword">else</span>&#123;</span><br><span class="line">				k++;</span><br><span class="line">			&#125;</span><br><span class="line">		&#125;</span><br><span class="line">		tags[i][tagn[i]++]=<span class="built_in">string</span>(j,k);</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">for</span>(<span class="keyword">int</span> i=<span class="number">0</span>;i&lt;n;i++)&#123;</span><br><span class="line">		<span class="keyword">for</span>(<span class="keyword">int</span> j=<span class="number">0</span>;j&lt;tagn[i];j++)&#123;</span><br><span class="line">			<span class="comment">//cout&lt;&lt;"tags["&lt;&lt;i&lt;&lt;"]["&lt;&lt;j&lt;&lt;"]="&lt;&lt;tags[i][j]&lt;&lt;endl;</span></span><br><span class="line">			sset.insert(tags[i][j]);</span><br><span class="line">		&#125;</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">int</span> num=<span class="number">0</span>;</span><br><span class="line">	<span class="keyword">for</span>(<span class="keyword">auto</span> i:sset)&#123;</span><br><span class="line">		<span class="comment">//cout&lt;&lt;"test_sset:"&lt;&lt;i&lt;&lt;endl;</span></span><br><span class="line">		nmaps[num]=i;</span><br><span class="line">		smapn[i]=num++;</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">for</span>(<span class="keyword">int</span> i=<span class="number">0</span>;i&lt;n;i++)&#123;</span><br><span class="line">		<span class="keyword">for</span>(<span class="keyword">int</span> j=<span class="number">0</span>;j&lt;tagn[i];j++)&#123;</span><br><span class="line">			ans[smapn[tags[i][j]]].push_back(i);</span><br><span class="line">		&#125;</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">for</span>(<span class="keyword">int</span> i=<span class="number">0</span>;i&lt;num;i++)&#123;</span><br><span class="line">		<span class="built_in">cout</span>&lt;&lt;nmaps[i]&lt;&lt;<span class="string">":"</span>;</span><br><span class="line">		<span class="keyword">for</span>(<span class="keyword">auto</span> j:ans[i])&#123;</span><br><span class="line">			<span class="built_in">cout</span>&lt;&lt;<span class="string">' '</span>&lt;&lt;j+<span class="number">1</span>;</span><br><span class="line">		&#125;</span><br><span class="line">		<span class="built_in">cout</span>&lt;&lt;<span class="built_in">endl</span>;</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h1 id="D"><a href="index.html#D" class="headerlink" title="D"></a>D</h1><p><a href="http://110.64.92.219/problem/166" target="_blank" rel="noopener">我，BPM，连连看，启动！</a></p>
<h1 id="E"><a href="index.html#E" class="headerlink" title="E"></a>E</h1><p><a href="http://110.64.92.219/problem/165" target="_blank" rel="noopener">我，胡老师，需要梳子</a></p>
<h1 id="F"><a href="index.html#F" class="headerlink" title="F"></a>F</h1><p><a href="http://110.64.92.219/problem/164" target="_blank" rel="noopener">我，BPM，四级没过</a></p>
<figure class="highlight cpp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">//#include &lt;bits\stdc++.h&gt;</span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span> <span class="meta-string">&lt;iostream&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span> <span class="meta-string">&lt;cstdio&gt;</span></span></span><br><span class="line"><span class="keyword">using</span> <span class="keyword">namespace</span> <span class="built_in">std</span>;</span><br><span class="line"><span class="keyword">int</span> M=<span class="number">1000000007</span>;</span><br><span class="line"><span class="function"><span class="keyword">long</span> <span class="keyword">long</span> <span class="title">fpow</span><span class="params">(<span class="keyword">long</span> <span class="keyword">long</span> x,<span class="keyword">int</span> y)</span></span>&#123;</span><br><span class="line">	<span class="keyword">long</span> <span class="keyword">long</span> ans=<span class="number">1</span>;</span><br><span class="line">	<span class="keyword">while</span>(y)&#123;</span><br><span class="line">		<span class="keyword">if</span>(y&amp;<span class="number">1</span>)ans=(ans*x)%M;</span><br><span class="line">		x=(x*x)%M;</span><br><span class="line">		y&gt;&gt;=<span class="number">1</span>;</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">return</span> ans;</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">main</span><span class="params">()</span></span>&#123;</span><br><span class="line">	<span class="keyword">long</span> <span class="keyword">long</span> m,n;</span><br><span class="line">	<span class="keyword">while</span>(~<span class="built_in">scanf</span>(<span class="string">"%lld%lld"</span>,&amp;m,&amp;n))&#123;</span><br><span class="line">		<span class="keyword">long</span> <span class="keyword">long</span> ans=(fpow(m<span class="number">-1</span>,n)+n*fpow(m<span class="number">-1</span>,n<span class="number">-1</span>))%M;</span><br><span class="line">		<span class="built_in">printf</span>(<span class="string">"%lld\n"</span>,ans);</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h1 id="G"><a href="index.html#G" class="headerlink" title="G"></a>G</h1><p><a href="http://110.64.92.219/problem/163" target="_blank" rel="noopener">我，小南瓜，打钱，出原题</a></p>
<h1 id="H"><a href="index.html#H" class="headerlink" title="H"></a>H</h1><p><a href="http://110.64.92.219/problem/162" target="_blank" rel="noopener">我，czq，H，JHSeng，猪头</a><br>线段树。。</p>
<figure class="highlight cpp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#<span class="meta-keyword">include</span> <span class="meta-string">&lt;cstdio&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span> <span class="meta-string">&lt;iostream&gt;</span></span></span><br><span class="line"><span class="keyword">using</span> <span class="keyword">namespace</span> <span class="built_in">std</span>;</span><br><span class="line"><span class="keyword">const</span> <span class="keyword">int</span> N=(<span class="number">1</span>&lt;&lt;<span class="number">17</span>)+<span class="number">5</span>;</span><br><span class="line"><span class="keyword">const</span> <span class="keyword">int</span> NN=(N&lt;&lt;<span class="number">2</span>);</span><br><span class="line"><span class="keyword">int</span> n,m,a[N],s[NN];</span><br><span class="line"><span class="function"><span class="keyword">void</span> <span class="title">build</span><span class="params">(<span class="keyword">int</span> p,<span class="keyword">int</span> l,<span class="keyword">int</span> r,<span class="keyword">int</span> t)</span></span>&#123;</span><br><span class="line">	<span class="comment">//printf("build(%d,%d,%d,%d)\n",p,l,r,t);</span></span><br><span class="line">	<span class="keyword">if</span>(l==r)&#123;</span><br><span class="line">		s[p]=a[l];</span><br><span class="line">		<span class="comment">//printf("l==r,s[%d]=a[%d]=%d\n",p,l,a[l]);</span></span><br><span class="line">		<span class="keyword">return</span>;</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">int</span> mid=(l+r)&gt;&gt;<span class="number">1</span>;</span><br><span class="line">	build(p&lt;&lt;<span class="number">1</span>,l,mid,t+<span class="number">1</span>);</span><br><span class="line">	build(p&lt;&lt;<span class="number">1</span>|<span class="number">1</span>,mid+<span class="number">1</span>,r,t+<span class="number">1</span>);</span><br><span class="line">	<span class="keyword">if</span>(t&amp;<span class="number">1</span>)s[p]=s[p&lt;&lt;<span class="number">1</span>]|s[p&lt;&lt;<span class="number">1</span>|<span class="number">1</span>];</span><br><span class="line">	<span class="keyword">else</span> s[p]=s[p&lt;&lt;<span class="number">1</span>]^s[p&lt;&lt;<span class="number">1</span>|<span class="number">1</span>];</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">update</span><span class="params">(<span class="keyword">int</span> x,<span class="keyword">int</span> y)</span></span>&#123;</span><br><span class="line">	<span class="comment">//printf("update(%d,%d)\n",x,y);</span></span><br><span class="line">	x=(<span class="number">1</span>&lt;&lt;n)<span class="number">-1</span>+x;</span><br><span class="line">	<span class="comment">//printf("x=%d\n",x);</span></span><br><span class="line">	s[x]=y;</span><br><span class="line">	x&gt;&gt;=<span class="number">1</span>;</span><br><span class="line">	<span class="comment">//printf("x=%d\n",x);</span></span><br><span class="line">	<span class="keyword">int</span> t=<span class="number">1</span>;</span><br><span class="line">	<span class="keyword">while</span>(x)&#123;</span><br><span class="line">		<span class="keyword">if</span>(t&amp;<span class="number">1</span>)s[x]=s[x&lt;&lt;<span class="number">1</span>]|s[x&lt;&lt;<span class="number">1</span>|<span class="number">1</span>];</span><br><span class="line">		<span class="keyword">else</span> s[x]=s[x&lt;&lt;<span class="number">1</span>]^s[x&lt;&lt;<span class="number">1</span>|<span class="number">1</span>];</span><br><span class="line">		t++;</span><br><span class="line">		x&gt;&gt;=<span class="number">1</span>;</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">return</span> s[<span class="number">1</span>];</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">main</span><span class="params">()</span></span>&#123;</span><br><span class="line">	<span class="comment">//cout&lt;&lt;NN;</span></span><br><span class="line">	<span class="comment">//freopen("input.txt","r",stdin);</span></span><br><span class="line">	<span class="built_in">scanf</span>(<span class="string">"%d%d"</span>,&amp;n,&amp;m);</span><br><span class="line">	<span class="keyword">for</span>(<span class="keyword">int</span> i=<span class="number">1</span>;i&lt;=(<span class="number">1</span>&lt;&lt;n);i++)&#123;</span><br><span class="line">		<span class="built_in">scanf</span>(<span class="string">"%d"</span>,&amp;a[i]);</span><br><span class="line">	&#125;</span><br><span class="line">	build(<span class="number">1</span>,<span class="number">1</span>,(<span class="number">1</span>&lt;&lt;n),n&amp;<span class="number">1</span>);</span><br><span class="line">	<span class="comment">/*for(int i=1;i&lt;=4*n;i++)&#123;</span></span><br><span class="line"><span class="comment">		printf("s[%d]=%d\n",i,s[i]);</span></span><br><span class="line"><span class="comment">	&#125;*/</span></span><br><span class="line">	<span class="keyword">for</span>(<span class="keyword">int</span> i=<span class="number">1</span>;i&lt;=m;i++)&#123;</span><br><span class="line">		<span class="keyword">int</span> p,q;</span><br><span class="line">		<span class="built_in">scanf</span>(<span class="string">"%d%d"</span>,&amp;p,&amp;q);</span><br><span class="line">		<span class="built_in">printf</span>(<span class="string">"%d\n"</span>,update(p,q));</span><br><span class="line">	&#125;</span><br><span class="line">	<span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h1 id="I"><a href="index.html#I" class="headerlink" title="I"></a>I</h1><p><a href="http://110.64.92.219/problem/161" target="_blank" rel="noopener">我，czq，就是喜欢英文，JHSeng，就是要出英文题！</a></p>
<h1 id="J"><a href="index.html#J" class="headerlink" title="J"></a>J</h1><p><a href="http://110.64.92.219/problem/169" target="_blank" rel="noopener">我，小甜甜，才是正义的化身</a></p>

      
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